Discrete channel models for evaluation of error control strategies in CDMA

Author

Nefedov, Nikolai

Author_Institution

Nokia Group, Nokia Res. Center, Finland

Volume

1

fYear

1998

fDate

2-4 Sep 1998

Firstpage

245

Abstract

We present a method to build discrete channel (DC) models that speed up simulations and facilitates analysis of error control strategies. This method is based on nested hidden Markov models (HMM) and takes into account soft decision outputs. The verification of DC model made by simulations of wide-band DS-CDMA (WCDMA) traffic confirmed the validity of suggested approach. Realistic DC models based on nested HMM are built for different coding and interleaving schemes evaluation. At the same time these models provide the basis for different FEC-ARQ schemes studies

Keywords

cellular radio; code division multiple access; error correction codes; forward error correction; hidden Markov models; interleaved codes; spread spectrum communication; telecommunication channels; telecommunication traffic; CDMA; FEC-ARQ schemes; GSM; WCDMA traffic; coding; discrete channel models; error control strategies; interleaving; nested HMM; nested hidden Markov models; simulations; soft decision outputs; wide-band DS-CDMA; Automatic repeat request; Error correction; Forward error correction; Hidden Markov models; Interleaved codes; Land mobile radio; Multiaccess communication; Physical layer; Traffic control; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on

Conference_Location

Sun City

Print_ISBN

0-7803-4281-X

Type

conf

DOI

10.1109/ISSSTA.1998.726235

Filename

726235